rhce book

RHCE authentication must test the Linux network service configuration: This lecture includes nine network services: yumsambanfsftpdovecotsendmailhttpdiptablestcpwrapper ------ environment # uname-aLinuxCentOS52.6.18-8.el5IP: 192.168.2.88server: 192.168.2.1hostname: RHCE authentication requires Linux network service configuration: Nine network services included in this lecture: yum samba nfs ftp dovecot sen

The new version of RHCE exam notes for Linux learning standard routes. Master at least 50 Common commands. 2. Familiar with X-windows desktop operations such as GnomeKDE. It is best to install the system on your own and use x to enable or disable the network. 3. master. tgz ,. common installation methods of software packages such as rpm, which will be used during Backup and restoration. learn to add peripherals and install device drivers (such as NICS

enterprises in the world. In addition: * Red hat is currently the first LINUX Enterprise in the world to take its own profits and losses. It is a NASDAQ-listed company with a bank cash of up to $2.9 billion; * Red hat is the only LINUX vendor that has gained extensive support from the world's top ISV (independent software provider; * IT is a partner of COMPAQ, DELL, IBM, INTEL, and other top-notch IT enterprises; * Red hat has a 52% share of the LINUX operating system market; 　　 Among red hat's

If Postfix does not start correctly, you can use the following command for error handling. #systemctl-l status postfix #journalctl-xn #postconf-n Test Postfix Mail ServiceTo test the mail server, you can use any Mail user agent (mail users Agent,mua), such as mail or mutt.As I personally like Mutt, I will use it in Box1 to send mail to the user Tecmint, and the existing file (Mailbody.txt) as the information content: #mutt-s"Part 9-

It has been about 3 months since December 8, when the post of a junior network engineer entered the network. This period of time is not less consulting friends, their own groping.Originally planned is to follow CCNA has been to CCIE, didn't think now decided to test RHCE turn to the system. So do not know the future of the road will be how, but efforts will certainly not let themselves down.Since March, it is now 20 days, the morning exam RHCSA conten

Recently studying the RHCE course, simply talk about how to use HTTP as the KVM VM network installation process, then also will be talked about Ftp+http+kickstart release, as well as PXE installation Rhel.Environment:Virtual Host: RHEL 7.0Hardware: 4vcpu+8g+40gdiskIP Address: 172.16.38.10I first install the VMware Workstation 12 on the notebook, and create a new RHEL7 virtual machine as the host (this step omitted, need VM12 and RHEL7, will be in my s

This RHCE Study Notes include common dhcp applications, assigned fixed ip addresses, relay proxy 1. in the experiment environment, set up four CentOS5.4 virtual machines, which are S (dhcpserver), A (dhcp-client), R (route), and B (relay proxy) Nic configurations as follows: /etc/sysconfig/network-scripts/The ifcfg-eth0 or eth1S: DEVICE = eth0 n This RHCE Study Notes include common dhcp applications, assig

RHCE Simulation Exam configuration Samba service, share out/groupdir directory, requires only 192.168.0.0/24 and 192.168.1.0/24 and 127.0.0.1 can access, share out the name is [common], users can not see, Only the student group has the Write permission, at the same time, to the student group of each user's home directory is also shared, and requires selinux must be enforcing. This will prevent Samba from logging on.The solution is to change the SELinu

Installing packages with Yum is quick and easy, with several software libraries from CentOS and other Third-party developers with software components outside of the default repositories of base and updates to meet your needs, which have varying degrees of stability within the CentOS community, Support and cooperation. Here are a few examples of software libraries: 1. Rpmforge This software library is primarily maintained by DAG, providing more than 10,000 CentOS components, including MPlayer,

RHCE experiment: xinetd-Based Access Control-Linux Enterprise Application-Linux server application information. See the following for details. Course Background: RH253 Requirement: configure the telnet server and use xinetd to implement the following access control functions 1. the maximum number of connections to the telnet server is 20. 2. If the number of telnet requests per second reaches 4, the service will automatically stop for 1 minute.

RHCE Internet access-general Linux technology-Linux technology and application information. For details, refer to the following section. What is depressing is that, although it has been two months since Linux was installed, it has been using the Internet access method of China Netcom and ADSL. There is no problem with accessing the Internet in Linux in this way... Last month, it was transferred to campus network. Huawei's 802.1x certification. Downlo

watch the video inside YouTube what to do, Baidu keyword: blue light. Need support based on Google Chrome.(It is recommended to use Netpass if the conditions are available.) The quality of my personal experience is more reliable. Can fully play my home 4M small water pipe speed. ）Learning is serious, rigorous, extensible, not limited to the so-called curriculum outline, to oneself will be a depth of ascension, not the whole direction of Ascension.Because, I can not find the direction of develop

RHCE (REDHAT7) (ii)The hard disk is in sector,1 sector is 512b (6 and below in cylinder,1 cylinder is about 8M)The partition format for XFS supports up to 500T (6 and below partition formats of Ext4, up to 50T support)Fdisk MBR Partitioning methodGdisk GPT Partitioning methodParted Advanced partitioning operations (create, copy, resize partitions, etc.)Partprobe Refresh partition table (or restart server)Fdisk-lFdisk/dev/sdb (n new,p print,d Delete,w

Two. PXE configuration1. Install and enable the TFTP serviceYum-y Install tftp* (in fact, the need is TFTP tftp-server these two components, but for convenience ~)Vi/etc/xinetd.d/tftpModify Disable =noWq SaveService xinetd Start2. Install and enable the DHCP serviceHint (server ip:192.168.10.125; DHCP address pool is 192.168.10.135-192.168.10.145;)Yum-y Install DHCPVi/etc/dhcp/dhcpd.confSubnet 192.168.10.0 netmask 255.255.255.0 {Option routers 192.168.10.125;Option Subnet-mask 255.255.255.0;Opti

be able to set Red Hat Enterprise Linux servers and simple configuration of common network servers and security settings.Specific course objectives:Network service configuration for Red Hat Enterprise LinuxConfigure the network system through DNS and DHCPImplement web services through Apache and squidNetwork Sharing Service through FTP, NFS, and sambaSMTP service with Sendmail and PostfixRemote connection and key-value management through SSHBasic knowledge of encryption technologyImplement kern

RHCE Study Notes 2 -- command line operation File1. Create and delete a file (touch, rm) touch xxxx create a new empty file touch-t 201412250101 xxxx create a file and specify the time attribute (year, month, day, And hour. seconds) [root @ cai home] # touch xxxx [root @ cai home] # touch-t 201412301030 yyyy [root @ cai home] # ls-l xxxx yyyy-rw-r --. 1 root 0 November 2 13:00 xxxx (current time November 2, 2015 02:13)-rw-r --. 1 root 0 December 30 20

The following 30 focuses on the main direction of the rhce examination: 1. Familiar with RedHat Linux installation options, especially network installation 2. Understand Lilo, grub, and other startup management programs and boot Processes 3. Able to install (RPM) and set other installation options afterwards 4. Understand the RedHat Linux System Configuration 5. Familiar with various configuration files under/etc/sysconfig/network-Scripts 6. understa

Article Title: RHCE experiment: xinetd-Based Access Control in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Requirements: configure the telnet server and use xinetd to implement the following access control functions 1. the maximum number of connections to the telnet server is 20. 2. If the number of teln

Logging in bridging mode configuring the Internet 1. Configure the corresponding virtual machine network mode to "Bridging mode"2. View and configure the network card and IP address of this computer (Windows)Example configuration:After configuration, a diagnosis, a restart, you can continue to surf the internet, OK3. Specify the network adapter for the virtual machine4. Configure the virtual machine IPBe aware of the same network segment as the Windows host.5. Restart the virtual machine network

startup Kernel Yum install authconfig-GTK Vim/etc/chrony. confSystemctl restart chronyd. Service (enable) Useradd-u 1234 Alex Fdisk/dev/vdb n --> E; fdisk/dev/vdb n --> L --> E --> + 500 m --> E --> T --> 82 --> WPart-A/dev/vdbMkswap/dev/vdb6UUIDVim/etc/fstabUUID swap defaults 0 0Swapon- Mkdir/root/findfilesFind/-user IRA-exec CP {}/root/findfiles \; Grep 'semisc'/usr/share/dict/words/root/wordlist This article is from the "Blood Java" blog, please be sure to keep this source http://su